Why not make tire doping legal? Why is it illegal now? Mark the right rear you start the night with and check that you used that same one all night. Dope it all you want. If it's legal, everyone will know how to dope and why to dope tires. I understand traction control being illegal. Thousands of dollars to buy, mega thousands of dollar motors. What does a can of tire dope cost? $25.00 a gallon? Half gallon? Getting a right rear from Hoosier last year was like pulling teeth. I called and even went to Brownsburg...I need a right rear...who are you?...what's your name?...(never heard of you) no tires...don't know when we'll get any...your series mandates them?...too bad...call around...no tires for you. If I knew how to dope a tire and get longer life, I'd do it in a heartbeat.